01▲PyuQuMuQu: Attacks on MQ-Based Linkable Ring Signatures and a New 5-Pass Construction eprint.iacr.org Breaks two MQ ring signatures, tightens a 4-challenge proof, then adds PyuQuMuQu, a 5-pass fix in ROM.anonymityeprinthashlinkable-ring-signaturesmultivariate-cryptographypost-quantumsignature-schemessoundnesszero-knowledge0 pts/deadlock99/16 days ago/1 comment